Oil-switch.



C. A. CLARK.

0|L SWITCH.

APPLICATION min SEPT. B. 1915.

Patented Dec. 12, 1916.

Witness.

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UNTTED sTATEs PATENT oEEIoE.

CHARLES A. CLARK, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNEASSIGN- v MENTS, T0 WOOD RIVER IRON WORKS, INC.

OIL-SWITCH.

Application led September 8, 1915.

To all whom t may concern Be it known that 1, CHARLES A. CLARK, acitizen of the United States, and resident of New York, county and Stateof New York, have invented certain new and useful Improvements inOil-Switches, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingrepresenting like parts. I

My invention consists primarily of an oil switch ofthe oil immersed typewith contact carrying means that can move only in one direction, in ahorizontal plane, to make one series of electrical connections and, uponreleasing, the contact carrying means automatically returns to thenormal or open position. The second movement of the switch causes thecontact carrying means to slide at right angles or longitudinally in amoving carrier, moving diagonally in a horizontal plane and completing asecond series of electrical connections. This second series ofelectrical connections can not be made until the first series arecompleted and the Contact carrying means returns to the off or normalposition. It is so constructed that the contacts,with their insulatingcarriers, leads and terminal boards, can be easily vremoved from the oiltank without disturbing any of the moving parts or interfering with theoperation of the switch itself.

Another feature consists in having the oil tank and upper part of theswitch in one unit, the switch itself fastened to that unit making thewhole switch practically as one piece. Thus the removableparts, with theexception of the sheet iron protecting cover, consist of the electricalcontacts with their insulating carriers, leads and terminal boards. l yf The object of my invention is to provide an oil switch whose operatingmeans and oil tank are constructed' as one unit-or part, which unit orpart does not have t0 be disturbed when it is necessary to replace wornout contacts or to see the same, to observe their condition.

Another feature of the oil switch consists of a novel arrangement of itsmovements which are so arranged that it is mechanically impossibletomake a second or final electrical circuit before completing a firstcircuit and, furthermore, the operating Specification of Letters Patent.

Patented Dec. 12, 1916.

Serial No. 49,477.

handle can only be moved in one direction m'naking the aforesaid firstelectrical circui Another novel feature is the guiding of the movingcontact'carrying means into positlon so as to complete the secondelectrical circuit after having completed the first electrical circuit.In the accompanying .drawings Figure 1 1s a plan, partly in section andpartly broken away, Fig. 2 is a cross section showing details of themechanism on line A B.

The oil tank 1 may be of any desired size -or shape to suittheparticular size or style of switch, is divided into two parts and heldtogether by bolts 2, the upper part, 3 carrying bosses fl to which isvfastened the movement. The feet on frame 3 are provided with holes 56'for bolting the switch to its support. Part 3 has an extension 5 intowhich slides the fixed contact carrying means 6 with the contacts 7 anda boss 8 which holds into position two pins 9 and 10 between which isthe spring 11, said spring allowing the pin 21 to ride over the surfaceof the guide 12 upon the return of the moving board or contact carryingmeans, said guide 12 being pivoted to the lower part of the extension 5by' the pivot 13 and the second position of the moving contact carryingmeans being shown by the dotted lines 63. The extension 5 also has fourbosses 14: by

`means of which are held the four guiding pins 15, held in place by thepins 16 and whose purpose is to guide the moving contact carrying meansin the proper direction, through the guiding bosses 64 on frame 25.

The moving' contact carrying means 67 with the contacts 17, springs 18and nuts 19,

slides into the U-shaped frame 20 which has 'fixed thereto three pins21, 22 and 23. Pins 22 and 23 are used as guides for the contactcarrying means 67'when the said contact carrying means is moved by thehandle 24 into the second ,position The U-shaped frame 20 is carried inanother U-shaped frame 25 and the Vguide pin 21 which is part of frame20 projects through a slot 26 in frame 25, so that when guide 12 is inthe second operating position, guide pin 21 will slide against the face27 of guide 12 and cause the moving contact carrying means 67 to slidelengthwise or longitudinally in the frame 25 on pins 22 and 23,compressing the return spring 28, acting between frames 25 and 20, atthe same time the moving contact carrying means will move diagonallytoward the fixed contact carrying means 6. The final position of themoving contact carrying means is shown in a partly dotted outline 29.rllhe til-shaped frame 25 also carries two bosses 30 and 31 which act aspivots for the arm 32 and said bosses slide in slots one oit' which isshown by 33. The upper part of the arm or frame 32 is pivoted in thebosses 4, one on each side of lthe casting, by the pivots 34 and 35. Oneend of this arm 82 also carries the lug 36, with the adjusting slot 37,clamping piece 38 and lock nut IThe handle 24, shown dotted in Fig. 2and full in Fig. l, is also shown dotted in the operating position 40. y

The clamping piece 38 carries a link 4l which is connected to a lever42, pivoted at 43, carrying a pawl 44 which is pivoted at 45 on link 42and upon movement of this link 41, pawl 44 moves cam wheel 46 by meansof the teeth 47 in the same. lWhen this wheel 46 moves it forces the pin9 out of the recess 48, down the inclined surface in said cam on thesurface 49, thus causing guide l2 to be held under pressure of spring l1until the guide pin 2l is in its normal position, when the guide l2 willtake a position in front of pin 2l so that upon further movement of thehandle 24, the moving contact means 67 will proceed into position 29 andcomplete another electrical circuit.

Connected to lever 42 is a lug 50 carrying on its end the laminations 5lheld into 50 by rivets or other suitable means 52. When the lever 42 ismoved the laminations 51 are brought into position 58 against the magnet54, also built up of laminations and which operate to hold the switch inits inal position 29, only when current is applied to this magnet 54,which current is applied only when the switch has completed the secondelectrical circuit as shown by position 29.

On the upper part of the oil tank 3 is a cover 57, fastened thereto byscrews 58, one purpose of which is to keep foreign material, etc., fromthe switch interior and another purpose is to hold the sliding terminalboard 59 which slides in grooves 60 and 6l in casting 3, so that whenthe cover 57 is removed, the contact carrying means 6 and 67 as well asthe terminal board 59, with the cables or leads 62, can be removed fromthe switch and examined or repaired.

To provide for removing oil from the tank l a pipe plug 68 is provided,which when removed will drain the oil tank of oil, etc., thus allowingfresh oil to be placed into the tank without removing or disturbing theswitch proper.

To return the movement to its normal open position, a spring 64 isprovided, connected to lug 36 and boss 65 on frame 3 and to limit themovement of the switch the stop lug 66 is used.

Having thus described my invention, I claim as new and desire to secureby Letters Patent z* l. In an electric switch, a reciprocable, laterallyshiftable contact carrying member, contacts mounted thereon, coperatingfixed contacts, actuating means adapted to reciprocate said member intoengagement with said fixed cont-acts, and means for laterally shiftingsaid member upon alternate actuations thereof.

2. in an electric oil switch, a reciprocable, laterally shiftableremovable member carrying contacts, a coperating removable fixed contactmember having contacts motmted thereon, actuating means adapted toreciprocate said member into engagement with said fixed contacts andmeans for laterally shifting said member upon alternate actuationsthereof.

3. In an electric oil switch, an oil tank and fra-me combined as oneunit, carrying a reciprocable, laterally shittable removable slidingcontact carrying member with contacts mounted thereon, a coperatingremovably sliding fixed contact member having contacts mounted thereon,actuating means adapted to reciprocate said member into engagement withsaid fixed contacts and means for laterally shifting said member uponalternate actuations thereof.

4. In an electric oil switch, a tank and frame unit carrying areciprocable, laterally shiftable removable sliding contact carryingmember with compressible contacts mounted thereon, a coperatingremovably sliding fixed contact member having noncompressible contactsmounted thereon, ac-

tuating means adapted to reciprocate said member into engagement withsaid fixed contacts and means for laterally shifting said member uponalternate actuations thereof.

5. In an electric oil switch, a tank and frame unit carrying areciprocable, laterally shiftable removable sliding contact carryingmember with compressible contacts mounted thereon, a coperatingremovable sliding iixed contact member having noncompressible contactsmounted thereon, actuating means adapted to reciprocate said memberinto. engagement with said xed contacts, means for laterally shiftingsaid member upon alternate actuations thereof and means for holding saidswitch after having moved it laterally to complete an electric circuitor circuits.

6. In an electric oil switch, a tank and frame unit carrying areciprocable laterally shiftable removable sliding contact carryingmember with compressible contacts mounted thereon, a coperatingremovable sliding fixed contact member having noncompressible contactsmounted thereon, accircuit or circuits and means for returning tuatngmeans adapted to reciprocate said said switch to the first or offposition. member into enfavement with the fixed contacts, means tfno;laterally shifting said CHARLES A' CLARK member upon alternate actuatonsthereof, Vitnesses: means for holding said swltch after having ARTHUR W.HAZLETT, moved 1t laterally to complete an electrical PHILIP F.RI-IoADEs.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

